Which three scenarios would be more optimal for logical partitioning than physical partitioning?

A.
Customer would like to partition an SL8500 complex into smaller partitions.

B.
Customer would like to partition an SL8500 or an SL3000 into more partitions than physical
partitioning allows.

C.
Customer would like to partition an SL3000 into two partitions, one for mainframe and one for
open systems.

D.
Customer would prefer multiple partitions to be controlled by VOLSER than physical address.

Explanation: